Flashcards in Reaction Rates Deck (4)
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1
Q
Rate of reaction
A
- Defined as the change in concentration of a reactant or a product in a given time.
- rate (moldm^-3/s^-1)= change in conc./ time
2
Q
Changes in rate of reaction over time
A
- Fastest at start as reactant is at its highest concentration.
- Slows down as the reaction proceeds as the reactants are being used up and their conc. decreases.
- Once one of the reactants has been completely used up, the conc. stops changing and rate of reaction is 0.
3
Q
Altering rate of reaction
A
- Concentration or pressure when reactants are gases
- Temp
- Catalyst
- Surface area of solids
4
Q
Collison theory
A
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